Simulating the Two-Process Sleep Model
by Mike Martin and David Terman

This page allows you to vary parameters in the two-process sleep model. The equations are given by:

There is the option of identifying an interval [a, b] upon which the individual continues in a state independent of the circadian thresholds.
Enter the value of the parameters below, then press Evaluate.

A =
τ =
τd =
τr =
to =
Hm =
Lm =
Δt =
So =
sleep =
tfinal =
noisy =
N =
a =
b =


Byrne, H., Cancer Modeling and Simulation, Chapman & Hall/CRC, Boca Raton, FL, 2003.